20960901 has 18 divisors (see below), whose sum is σ = 32787378. Its totient is φ = 12898080.

The previous prime is 20960893. The next prime is 20960911. The reversal of 20960901 is 10906902.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 30276 + 20930625 = 174^2 + 4575^2 .

It is not a de Polignac number, because 20960901 - 2³ = 20960893 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20960911) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5370 + ... + 8411.

It is an arithmetic number, because the mean of its divisors is an integer number (1821521).

Almost surely, 2^20960901 is an apocalyptic number.

It is an amenable number.

20960901 is a deficient number, since it is larger than the sum of its proper divisors (11826477).

20960901 is a wasteful number, since it uses less digits than its factorization.

20960901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13813 (or 13797 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 20960901 is about 4578.3076567658. The cubic root of 20960901 is about 275.7210871736.

The spelling of 20960901 in words is "twenty million, nine hundred sixty thousand, nine hundred one".